Customer complaint of gas leak. Customer had another plumbing company replace the water heater not too long ago and I believe they might have bumped the gas line. Turn gas on at propane tank. Use gas sniffer and found Leak at gas tite fitting just downstream of wall flange in garage. Turn gas off. Reseal gas tite fitting and check for leaks. No leaks present with gas sniffer. Use soap bubbles to ensure there are no leaks. No warranty on work done today since I didn’t use any parts. Thank you for choosing CPI! Customer would like receipt sent to their physical address